Custom Name/ID if no name Edit
[ADD INFOBOX HERE]
Stuff things edit later time for bed now, publishing so can see it at work.
! template will update on pages it's used on, PROVIDED you go to that page and edit/save it. You don't need to do anything else, but looks like you do have to manually go resave.
This template needs to be SUBSTITUTED into the new page, so changes to this template don't mess up the other pages.